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Technical Manual
REFERENCE STANDARD 4.5
SPECIFICATIONS
SPEAKERS:
� Frequency Response: � Amplifier Power: 24 through 32,000 Hz ±3 dB Bi-amping, minimum 100 watts per channel for bass section, 75 for midrange and high frequency. Single amp. Minimum 100 watts per channel 4 ohms For each channel:
CONTROL UNIT:
Dimensions: 10 1/4 inches x 14 1/4 wide x 2 1/8 (26 cm x 36.2 wide x 5.4)
PRODUCTION HISTORY:
� Introduced in 1978 � Discontinued in 1982 � Original Retail Price:
� Nominal Impedance: � Drivers:
(a) two 12-inch (30cm) Infinity-Watkins Dual-Drive Woofer with polypropylene cones; (b) four EMIM (Electromagnetic Induction Midrange) drivers in a dipole configuration; (c) four EMIT (Electromagnetic Induction Tweeters), one of them facing rearward Crossover Frequencies: 150Hz (adjustable with optional electronic crossover control) and 5,000 Hz Dimensions: 64 1/2 inches x 26 1/2 wide x 14 1/2 (160.6 cm x 66.25 wide x 36.25) Shipping Weight: 117 pounds (53 kgs) each Finish: Solid oak and veneers. Cloth grille and its frame are removable Warranty: Five years, transferable (see complete warranty statement)
$4,500.00
PHYSICAL SPECIFICATIONS:
COSMETIC PARTS: Grille Assy. Bottom CROSSOVER PARTS: Pot 2 Ohm 50W Fuse 2A AGC Fuse Holder .025...0352
�
� � � �
.145...0243 .870...0024 .550...0062
DRIVERS (TRANSDUCERS) EMIM Mid Rev. B/C .902...0012C EMIT Twt Sq/Blk .902...0143 12� WFR Watkins .902...1180 EMIT Diaph. 1/2 LS .751...3722 Diaph Assy. Rev. B/C .751...3806
REV B 3/2003
INFINITY SYSTEMS, INC. 250 Crossways Park Dr., Woodbury, New York 11797
REFERENCE STANDARD 4.5
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